1756-CN2 | Allen-Bradley ControlLogix ControlNet Communication Bridge Module

Overview
The 1756-CN2 by Allen-Bradley is a ControlLogix communication bridge module engineered for high-performance ControlNet networks. It provides reliable, high-speed connectivity between multiple nodes while maintaining low latency and efficient network traffic management.

Technical Specifications

• Model: 1756-CN2

• Manufacturer: Allen-Bradley

• Product Type: ControlNet Communication Module

• Category: ControlLogix PLC Module

• Module Type: Bridge Module

• Maximum Nodes Supported: 99

• Maximum Network Connections: 131

• ControlNet Communication Rate: 5 Mbps

• Configuration: Standard

• Input Current: 1100 mA at 5.1 V DC, 3 mA at 24 V DC

• Thermal Dissipation: 19.1 BTU/hr

• Power Consumption: 5.6 Watts

• Slot Width: 1

Features

• Facilitates seamless communication between ControlLogix I/O and controllers

• Efficient power and thermal management for extended operation

• Supports multiple nodes for scalable network architectures

• Compact design allowing flexible installation within standard racks

Applications

• Industrial process automation networks

• ControlLogix system integration across multiple nodes

• Data sharing and real-time control in manufacturing environments

FAQs

• Q: Can the 1756-CN2 support redundancy configurations?
  A: Yes, it can operate in networks with redundant ControlNet paths.

• Q: Does it require external power?
  A: No, the module draws necessary power from the backplane.

• Q: Is it compatible with all ControlLogix controllers?
  A: It is compatible with ControlLogix series PLCs supporting ControlNet communication.